public void EnterFeature <TEnterState>(object transitionInfo = null,
TransitionType transitionType = TransitionType.FastTransition) where TEnterState : State
{
_nguiTransitionController.ShowTransition(transitionType);
// Delay one frame to allow transition screen to show, just in case this EnterState will block immediately
_coroutineCreator.DelayActionOneFrame(() => {
_stateController.EnterState(typeof(TEnterState), transitionInfo);
});
}
private void ContinueEnteringState(State enterState, object transitionInfo, Action preEnterStateCallback = null)
{
//TODO This is a temporary fix for making sure that the Exiting of a current state and entering of the new state do not occur in the same frame.
//Cleaner solution would be to make the EnterState function a co routine and yielding a frame after Exiting and before calling the enter function of the next state.
_coroutineCreator.DelayActionOneFrame(() =>
{
#if METRICS_ENABLED && INCLUDE_DEV_METRICS
Metrics.Start(GetType().Name + ":Enter:" + enterState.Name);
#endif
int cleanupFrequency = _config.GetUnloadUnusedAssetsEachStateFrequency();
if (cleanupFrequency > 0 && ++_stateEnterCounter >= cleanupFrequency)
{
Resources.UnloadUnusedAssets();
GC.Collect();
_stateEnterCounter = 0;
}
// Set TimeEntered before SC_Enter because State implementations can perform initialization functions before
// the base class SC_Enter gets called. So we want this called before all that happens.
enterState.TimeEntered = Time.realtimeSinceStartup;
// Callback used for actions that need to happen before SC_Enter, but after DelayActionOneFrame and setting of TimeEntered
if (preEnterStateCallback != null)
{
preEnterStateCallback();
}
// Initialize & in the process, kick off the transition sequence
if (!enterState.SC_Enter(transitionInfo, OnEnterComplete))
{
#if METRICS_ENABLED && INCLUDE_DEV_METRICS
Metrics.End(GetType().Name + ":Enter:" + enterState.Name);
#endif
// State failed to start
ExitState(enterState, false);
}
});
}